Restore call to instantiate NotificationUIManager to fix perf timers.

BUG=105056
TEST=Check perf timers, should be back to pre-110853 values.

Review URL: http://codereview.chromium.org/8623007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111055 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chrome_browser_main.cc

@@ -1860,6 +1860,12 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
   NaClProcessHost::EarlyStartup();
 #endif
 
+  // Instantiate the notification UI manager, as this triggers a perf timer
+  // used to measure startup time. TODO(stevenjb): Figure out what is actually
+  // triggering the timer and call that explicitly in the approprate place.
+  // http://crbug.com/105065.
+  g_browser_process->notification_ui_manager();
+
   if (parameters().ui_task) {
     // We are in test mode. Run one task and enter the main message loop.
 #if defined(OS_MACOSX)